CNPGD Bluetooth Smart Watch(Partial Compatible for IOS IPHONE)+(Full Compatible for Android smartphone) Samsung, LG, Galaxy Note, Nexus, Sony+Unlocked Watch Cell Phone+Fitness Tracker Camera Pedometer for Kids, Men and Women(Black) Factory to Customer Sale offers BEST price/ USA Seller & Brand + Bluetooth Authorization + FCC Certification Choice 1: USE as Cell Phone(Sim Card Needed, See description for "Which Carrier OK") / Choice 2: USE as Smartwatch(NO Sim Card Needed, See description for Android & IPHONE SYNC, Some Function Blocked with no Sim Card and Memory Card) IPHONE Partial Available, CAN NOT SYNC ALL(See desciption for Detail) ANDROID Phone Can SYNC all(APP needed, See description for how to find APP) Warning: Charge by computer USB port ONLY, unauthorized charger MAY DAMAGE the battery. Don't Heat battery or leave the watch in hot condition. Stop using the battery on damaged or swelled condition and contact seller at once. <span class="a-text-bold">T-Mobile, Straight Talk, Lycamobile, Speedtalk, Ting GSM, Simple Mobile or ANY carrier&#039;s <u>GSM 2G Sim Card is available</u></span> for this watch 1.3 MP camera, speaker, mic, pedometer, caculator, voice recorder, alarm, mp3/4 player, calendar, sleep monitor, sedentary reminder, <span class="a-text-bold">Call &amp; receive call</span>on watch <span class="a-text-bold">Send &amp; receive Text Message</span> on watch Use watch build-in Facebook, Twitter, Web Browser app (<span class="a-text-bold"><u>GSM 2G Sim Card&#039;s GPRS Function must be activated for internet use</u></span>) Take photos and voice records (to save the file on memory card) Enjoy Mp4 Videos and Mp3 Music on watch (memory card needed or no place to store the files)